Rail cover



FIG. 1 is a top perspective view of a rail cover for a firearm;

FIG. 2 is a front elevation view of the rail cover of FIG. 1;

FIG. 3 is a side elevation view of the rail cover of FIG. 1;

FIG. 4 is a top plan view of the rail cover of FIG. 1;

FIG. 5 is a bottom plan view of the rail cover of FIG. 1; and,

FIG. 6 is bottom perspective view of the rail cover of FIG. 1.

Portions of the design shown in broken/dashed lines are included for the purpose of illustrating environment and form no part of the claimed design. 

The ornamental design for a rail cover, as shown and described. 